Robust Control of International Corporate Networks Using Dynamic Trunk Reservation

Toshikane ODA  Hiroyuki FUKUOKA  Yu WATANABE  

IEICE TRANSACTIONS on Communications   Vol.E74-B    No.12    pp.4043-4050
Publication Date: 1991/12/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Network Control)

Full Text: PDF(584KB)>>
Buy this Article

Cost minimization and enhancement of robustness are the major objectives in the design and control of corporate networks. The trade-off between private facility cost and expense for public network use is an important cost-effectiveness criterion. In this paper, we propose a traffic control method which minimizes cost for public network usage in the international corporate networks under both normal and abnormal conditions. The method is a combination of alternative routing and dynamic trunk reservation in which the number of reserved trunks at a link vary with 24-hour profiles of traffic and public network charges between nodes. An analytical performance evaluation method is described, and the effectiveness of the control method is evaluated based on numerical examples.